| /* |
| * Copyright (C) 2009 The Android Open Source Project |
| * |
| * Licensed under the Apache License, Version 2.0 (the "License"); |
| * you may not use this file except in compliance with the License. |
| * You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, software |
| * distributed under the License is distributed on an "AS IS" BASIS, |
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| * See the License for the specific language governing permissions and |
| * limitations under the License. |
| */ |
| |
| package com.android.contacts.model; |
| |
| import android.accounts.Account; |
| import android.accounts.AccountManager; |
| import android.accounts.OnAccountsUpdateListener; |
| import android.content.BroadcastReceiver; |
| import android.content.ContentResolver; |
| import android.content.Context; |
| import android.content.Intent; |
| import android.content.IntentFilter; |
| import android.content.SharedPreferences; |
| import android.content.SyncStatusObserver; |
| import android.content.pm.PackageManager; |
| import android.database.ContentObserver; |
| import android.net.Uri; |
| import android.os.Handler; |
| import android.os.Looper; |
| import android.provider.ContactsContract; |
| import androidx.core.content.ContextCompat; |
| import androidx.localbroadcastmanager.content.LocalBroadcastManager; |
| import android.text.TextUtils; |
| import android.util.Log; |
| |
| import com.android.contacts.Experiments; |
| import com.android.contacts.R; |
| import com.android.contacts.list.ContactListFilterController; |
| import com.android.contacts.model.account.AccountInfo; |
| import com.android.contacts.model.account.AccountType; |
| import com.android.contacts.model.account.AccountTypeProvider; |
| import com.android.contacts.model.account.AccountTypeWithDataSet; |
| import com.android.contacts.model.account.AccountWithDataSet; |
| import com.android.contacts.model.account.FallbackAccountType; |
| import com.android.contacts.model.account.GoogleAccountType; |
| import com.android.contacts.model.dataitem.DataKind; |
| import com.android.contacts.util.concurrent.ContactsExecutors; |
| import com.android.contactsbind.experiments.Flags; |
| import com.google.common.base.Preconditions; |
| import com.google.common.base.Function; |
| import com.google.common.base.Objects; |
| import com.google.common.base.Predicate; |
| import com.google.common.collect.Collections2; |
| import com.google.common.util.concurrent.FutureCallback; |
| import com.google.common.util.concurrent.Futures; |
| import com.google.common.util.concurrent.ListenableFuture; |
| import com.google.common.util.concurrent.ListeningExecutorService; |
| |
| import java.util.ArrayList; |
| import java.util.Collections; |
| import java.util.List; |
| import java.util.concurrent.Callable; |
| import java.util.concurrent.Executor; |
| |
| import javax.annotation.Nullable; |
| |
| /** |
| * Singleton holder for all parsed {@link AccountType} available on the |
| * system, typically filled through {@link PackageManager} queries. |
| */ |
| public abstract class AccountTypeManager { |
| static final String TAG = "AccountTypeManager"; |
| |
| private static final Object mInitializationLock = new Object(); |
| private static AccountTypeManager mAccountTypeManager; |
| |
| public static final String BROADCAST_ACCOUNTS_CHANGED = AccountTypeManager.class.getName() + |
| ".AccountsChanged"; |
| |
| public enum AccountFilter implements Predicate<AccountInfo> { |
| ALL { |
| @Override |
| public boolean apply(@Nullable AccountInfo input) { |
| return input != null; |
| } |
| }, |
| CONTACTS_WRITABLE { |
| @Override |
| public boolean apply(@Nullable AccountInfo input) { |
| return input != null && input.getType().areContactsWritable(); |
| } |
| }, |
| GROUPS_WRITABLE { |
| @Override |
| public boolean apply(@Nullable AccountInfo input) { |
| return input != null && input.getType().isGroupMembershipEditable(); |
| } |
| }; |
| } |
| |
| /** |
| * Requests the singleton instance of {@link AccountTypeManager} with data bound from |
| * the available authenticators. This method can safely be called from the UI thread. |
| */ |
| public static AccountTypeManager getInstance(Context context) { |
| if (!hasRequiredPermissions(context)) { |
| // Hopefully any component that depends on the values returned by this class |
| // will be restarted if the permissions change. |
| return EMPTY; |
| } |
| synchronized (mInitializationLock) { |
| if (mAccountTypeManager == null) { |
| context = context.getApplicationContext(); |
| mAccountTypeManager = new AccountTypeManagerImpl(context); |
| } |
| } |
| return mAccountTypeManager; |
| } |
| |
| /** |
| * Set the instance of account type manager. This is only for and should only be used by unit |
| * tests. While having this method is not ideal, it's simpler than the alternative of |
| * holding this as a service in the ContactsApplication context class. |
| * |
| * @param mockManager The mock AccountTypeManager. |
| */ |
| public static void setInstanceForTest(AccountTypeManager mockManager) { |
| synchronized (mInitializationLock) { |
| mAccountTypeManager = mockManager; |
| } |
| } |
| |
| private static final AccountTypeManager EMPTY = new AccountTypeManager() { |
| |
| @Override |
| public ListenableFuture<List<AccountInfo>> getAccountsAsync() { |
| return Futures.immediateFuture(Collections.<AccountInfo>emptyList()); |
| } |
| |
| @Override |
| public ListenableFuture<List<AccountInfo>> filterAccountsAsync( |
| Predicate<AccountInfo> filter) { |
| return Futures.immediateFuture(Collections.<AccountInfo>emptyList()); |
| } |
| |
| @Override |
| public AccountInfo getAccountInfoForAccount(AccountWithDataSet account) { |
| return null; |
| } |
| |
| @Override |
| public Account getDefaultGoogleAccount() { |
| return null; |
| } |
| |
| @Override |
| public AccountType getAccountType(AccountTypeWithDataSet accountTypeWithDataSet) { |
| return null; |
| } |
| }; |
| |
| /** |
| * Returns the list of all accounts (if contactWritableOnly is false) or just the list of |
| * contact writable accounts (if contactWritableOnly is true). |
| * |
| * <p>TODO(mhagerott) delete this method. It's left in place to prevent build breakages when |
| * this change is automerged. Usages of this method in downstream branches should be |
| * replaced with an asynchronous account loading pattern</p> |
| */ |
| public List<AccountWithDataSet> getAccounts(boolean contactWritableOnly) { |
| return contactWritableOnly |
| ? blockForWritableAccounts() |
| : AccountInfo.extractAccounts(Futures.getUnchecked(getAccountsAsync())); |
| } |
| |
| /** |
| * Returns all contact writable accounts |
| * |
| * <p>In general this method should be avoided. It exists to support some legacy usages of |
| * accounts in infrequently used features where refactoring to asynchronous loading is |
| * not justified. The chance that this will actually block is pretty low if the app has been |
| * launched previously</p> |
| */ |
| public List<AccountWithDataSet> blockForWritableAccounts() { |
| return AccountInfo.extractAccounts( |
| Futures.getUnchecked(filterAccountsAsync(AccountFilter.CONTACTS_WRITABLE))); |
| } |
| |
| /** |
| * Loads accounts in background and returns future that will complete with list of all accounts |
| */ |
| public abstract ListenableFuture<List<AccountInfo>> getAccountsAsync(); |
| |
| /** |
| * Loads accounts and applies the fitler returning only for which the predicate is true |
| */ |
| public abstract ListenableFuture<List<AccountInfo>> filterAccountsAsync( |
| Predicate<AccountInfo> filter); |
| |
| public abstract AccountInfo getAccountInfoForAccount(AccountWithDataSet account); |
| |
| /** |
| * Returns the default google account. |
| */ |
| public abstract Account getDefaultGoogleAccount(); |
| |
| /** |
| * Returns the Google Accounts. |
| * |
| * <p>This method exists in addition to filterAccountsByTypeAsync because it should be safe |
| * to call synchronously. |
| * </p> |
| */ |
| public List<AccountInfo> getWritableGoogleAccounts() { |
| // This implementation may block and should be overridden by the Impl class |
| return Futures.getUnchecked(filterAccountsAsync(new Predicate<AccountInfo>() { |
| @Override |
| public boolean apply(@Nullable AccountInfo input) { |
| return input.getType().areContactsWritable() && |
| GoogleAccountType.ACCOUNT_TYPE.equals(input.getType().accountType); |
| } |
| })); |
| } |
| |
| /** |
| * Returns true if there are real accounts (not "local" account) in the list of accounts. |
| */ |
| public boolean hasNonLocalAccount() { |
| final List<AccountWithDataSet> allAccounts = |
| AccountInfo.extractAccounts(Futures.getUnchecked(getAccountsAsync())); |
| if (allAccounts == null || allAccounts.size() == 0) { |
| return false; |
| } |
| if (allAccounts.size() > 1) { |
| return true; |
| } |
| return !allAccounts.get(0).isNullAccount(); |
| } |
| |
| static Account getDefaultGoogleAccount(AccountManager accountManager, |
| SharedPreferences prefs, String defaultAccountKey) { |
| // Get all the google accounts on the device |
| final Account[] accounts = accountManager.getAccountsByType( |
| GoogleAccountType.ACCOUNT_TYPE); |
| if (accounts == null || accounts.length == 0) { |
| return null; |
| } |
| |
| // Get the default account from preferences |
| final String defaultAccount = prefs.getString(defaultAccountKey, null); |
| final AccountWithDataSet accountWithDataSet = defaultAccount == null ? null : |
| AccountWithDataSet.unstringify(defaultAccount); |
| |
| // Look for an account matching the one from preferences |
| if (accountWithDataSet != null) { |
| for (int i = 0; i < accounts.length; i++) { |
| if (TextUtils.equals(accountWithDataSet.name, accounts[i].name) |
| && TextUtils.equals(accountWithDataSet.type, accounts[i].type)) { |
| return accounts[i]; |
| } |
| } |
| } |
| |
| // Just return the first one |
| return accounts[0]; |
| } |
| |
| public abstract AccountType getAccountType(AccountTypeWithDataSet accountTypeWithDataSet); |
| |
| public final AccountType getAccountType(String accountType, String dataSet) { |
| return getAccountType(AccountTypeWithDataSet.get(accountType, dataSet)); |
| } |
| |
| public final AccountType getAccountTypeForAccount(AccountWithDataSet account) { |
| if (account != null) { |
| return getAccountType(account.getAccountTypeWithDataSet()); |
| } |
| return getAccountType(null, null); |
| } |
| |
| /** |
| * Find the best {@link DataKind} matching the requested |
| * {@link AccountType#accountType}, {@link AccountType#dataSet}, and {@link DataKind#mimeType}. |
| * If no direct match found, we try searching {@link FallbackAccountType}. |
| */ |
| public DataKind getKindOrFallback(AccountType type, String mimeType) { |
| return type == null ? null : type.getKindForMimetype(mimeType); |
| } |
| |
| /** |
| * Returns whether the specified account still exists |
| */ |
| public boolean exists(AccountWithDataSet account) { |
| final List<AccountWithDataSet> accounts = |
| AccountInfo.extractAccounts(Futures.getUnchecked(getAccountsAsync())); |
| return accounts.contains(account); |
| } |
| |
| /** |
| * Returns whether the specified account is writable |
| * |
| * <p>This checks that the account still exists and that |
| * {@link AccountType#areContactsWritable()} is true</p> |
| */ |
| public boolean isWritable(AccountWithDataSet account) { |
| return exists(account) && getAccountInfoForAccount(account).getType().areContactsWritable(); |
| } |
| |
| public boolean hasGoogleAccount() { |
| return getDefaultGoogleAccount() != null; |
| } |
| |
| private static boolean hasRequiredPermissions(Context context) { |
| final boolean canGetAccounts = ContextCompat.checkSelfPermission(context, |
| android.Manifest.permission.GET_ACCOUNTS) == PackageManager.PERMISSION_GRANTED; |
| final boolean canReadContacts = ContextCompat.checkSelfPermission(context, |
| android.Manifest.permission.READ_CONTACTS) == PackageManager.PERMISSION_GRANTED; |
| return canGetAccounts && canReadContacts; |
| } |
| |
| public static Predicate<AccountInfo> writableFilter() { |
| return AccountFilter.CONTACTS_WRITABLE; |
| } |
| |
| public static Predicate<AccountInfo> groupWritableFilter() { |
| return AccountFilter.GROUPS_WRITABLE; |
| } |
| } |
| |
| class AccountTypeManagerImpl extends AccountTypeManager |
| implements OnAccountsUpdateListener, SyncStatusObserver { |
| |
| private final Context mContext; |
| private final AccountManager mAccountManager; |
| private final DeviceLocalAccountLocator mLocalAccountLocator; |
| private final Executor mMainThreadExecutor; |
| private final ListeningExecutorService mExecutor; |
| private AccountTypeProvider mTypeProvider; |
| |
| private final AccountType mFallbackAccountType; |
| |
| private ListenableFuture<List<AccountWithDataSet>> mLocalAccountsFuture; |
| private ListenableFuture<AccountTypeProvider> mAccountTypesFuture; |
| |
| private List<AccountWithDataSet> mLocalAccounts = new ArrayList<>(); |
| private List<AccountWithDataSet> mAccountManagerAccounts = new ArrayList<>(); |
| |
| private final Handler mMainThreadHandler = new Handler(Looper.getMainLooper()); |
| |
| private final Function<AccountTypeProvider, List<AccountWithDataSet>> mAccountsExtractor = |
| new Function<AccountTypeProvider, List<AccountWithDataSet>>() { |
| @Nullable |
| @Override |
| public List<AccountWithDataSet> apply(@Nullable AccountTypeProvider typeProvider) { |
| return getAccountsWithDataSets(mAccountManager.getAccounts(), typeProvider); |
| } |
| }; |
| |
| |
| private BroadcastReceiver mBroadcastReceiver = new BroadcastReceiver() { |
| @Override |
| public void onReceive(Context context, Intent intent) { |
| // Don't use reloadAccountTypesIfNeeded when packages change in case a contacts.xml |
| // was updated. |
| reloadAccountTypes(); |
| } |
| }; |
| |
| /** |
| * Internal constructor that only performs initial parsing. |
| */ |
| public AccountTypeManagerImpl(Context context) { |
| mContext = context; |
| mLocalAccountLocator = DeviceLocalAccountLocator.create(context); |
| mTypeProvider = new AccountTypeProvider(context); |
| mFallbackAccountType = new FallbackAccountType(context); |
| |
| mAccountManager = AccountManager.get(mContext); |
| |
| mExecutor = ContactsExecutors.getDefaultThreadPoolExecutor(); |
| mMainThreadExecutor = ContactsExecutors.newHandlerExecutor(mMainThreadHandler); |
| |
| // Request updates when packages or accounts change |
| IntentFilter filter = new IntentFilter(Intent.ACTION_PACKAGE_ADDED); |
| filter.addAction(Intent.ACTION_PACKAGE_REMOVED); |
| filter.addAction(Intent.ACTION_PACKAGE_CHANGED); |
| filter.addDataScheme("package"); |
| mContext.registerReceiver(mBroadcastReceiver, filter); |
| IntentFilter sdFilter = new IntentFilter(); |
| sdFilter.addAction(Intent.ACTION_EXTERNAL_APPLICATIONS_AVAILABLE); |
| sdFilter.addAction(Intent.ACTION_EXTERNAL_APPLICATIONS_UNAVAILABLE); |
| mContext.registerReceiver(mBroadcastReceiver, sdFilter); |
| |
| // Request updates when locale is changed so that the order of each field will |
| // be able to be changed on the locale change. |
| filter = new IntentFilter(Intent.ACTION_LOCALE_CHANGED); |
| mContext.registerReceiver(mBroadcastReceiver, filter); |
| |
| mAccountManager.addOnAccountsUpdatedListener(this, mMainThreadHandler, false); |
| |
| ContentResolver.addStatusChangeListener(ContentResolver.SYNC_OBSERVER_TYPE_SETTINGS, this); |
| |
| if (Flags.getInstance().getBoolean(Experiments.CP2_DEVICE_ACCOUNT_DETECTION_ENABLED)) { |
| // Observe changes to RAW_CONTACTS so that we will update the list of "Device" accounts |
| // if a new device contact is added. |
| mContext.getContentResolver().registerContentObserver( |
| ContactsContract.RawContacts.CONTENT_URI, /* notifyDescendents */ true, |
| new ContentObserver(mMainThreadHandler) { |
| @Override |
| public boolean deliverSelfNotifications() { |
| return true; |
| } |
| |
| @Override |
| public void onChange(boolean selfChange) { |
| reloadLocalAccounts(); |
| } |
| |
| @Override |
| public void onChange(boolean selfChange, Uri uri) { |
| reloadLocalAccounts(); |
| } |
| }); |
| } |
| loadAccountTypes(); |
| } |
| |
| @Override |
| public void onStatusChanged(int which) { |
| reloadAccountTypesIfNeeded(); |
| } |
| |
| /* This notification will arrive on the UI thread */ |
| public void onAccountsUpdated(Account[] accounts) { |
| reloadLocalAccounts(); |
| maybeNotifyAccountsUpdated(mAccountManagerAccounts, |
| getAccountsWithDataSets(accounts, mTypeProvider)); |
| } |
| |
| private void maybeNotifyAccountsUpdated(List<AccountWithDataSet> current, |
| List<AccountWithDataSet> update) { |
| if (Objects.equal(current, update)) { |
| return; |
| } |
| current.clear(); |
| current.addAll(update); |
| notifyAccountsChanged(); |
| } |
| |
| private void notifyAccountsChanged() { |
| ContactListFilterController.getInstance(mContext).checkFilterValidity(true); |
| LocalBroadcastManager.getInstance(mContext).sendBroadcast( |
| new Intent(BROADCAST_ACCOUNTS_CHANGED)); |
| } |
| |
| private synchronized void startLoadingIfNeeded() { |
| if (mTypeProvider == null && mAccountTypesFuture == null) { |
| reloadAccountTypesIfNeeded(); |
| } |
| if (mLocalAccountsFuture == null) { |
| reloadLocalAccounts(); |
| } |
| } |
| |
| private synchronized void loadAccountTypes() { |
| mTypeProvider = new AccountTypeProvider(mContext); |
| |
| mAccountTypesFuture = mExecutor.submit(new Callable<AccountTypeProvider>() { |
| @Override |
| public AccountTypeProvider call() throws Exception { |
| // This will request the AccountType for each Account forcing them to be loaded |
| getAccountsWithDataSets(mAccountManager.getAccounts(), mTypeProvider); |
| return mTypeProvider; |
| } |
| }); |
| } |
| |
| private FutureCallback<List<AccountWithDataSet>> newAccountsUpdatedCallback( |
| final List<AccountWithDataSet> currentAccounts) { |
| return new FutureCallback<List<AccountWithDataSet>>() { |
| @Override |
| public void onSuccess(List<AccountWithDataSet> result) { |
| maybeNotifyAccountsUpdated(currentAccounts, result); |
| } |
| |
| @Override |
| public void onFailure(Throwable t) { |
| } |
| }; |
| } |
| |
| private synchronized void reloadAccountTypesIfNeeded() { |
| if (mTypeProvider == null || mTypeProvider.shouldUpdate( |
| mAccountManager.getAuthenticatorTypes(), ContentResolver.getSyncAdapterTypes())) { |
| reloadAccountTypes(); |
| } |
| } |
| |
| private synchronized void reloadAccountTypes() { |
| loadAccountTypes(); |
| Futures.addCallback( |
| Futures.transform(mAccountTypesFuture, mAccountsExtractor), |
| newAccountsUpdatedCallback(mAccountManagerAccounts), |
| mMainThreadExecutor); |
| } |
| |
| private synchronized void loadLocalAccounts() { |
| mLocalAccountsFuture = mExecutor.submit(new Callable<List<AccountWithDataSet>>() { |
| @Override |
| public List<AccountWithDataSet> call() throws Exception { |
| return mLocalAccountLocator.getDeviceLocalAccounts(); |
| } |
| }); |
| } |
| |
| private synchronized void reloadLocalAccounts() { |
| loadLocalAccounts(); |
| Futures.addCallback(mLocalAccountsFuture, newAccountsUpdatedCallback(mLocalAccounts), |
| mMainThreadExecutor); |
| } |
| |
| @Override |
| public ListenableFuture<List<AccountInfo>> getAccountsAsync() { |
| return getAllAccountsAsyncInternal(); |
| } |
| |
| private synchronized ListenableFuture<List<AccountInfo>> getAllAccountsAsyncInternal() { |
| startLoadingIfNeeded(); |
| final AccountTypeProvider typeProvider = mTypeProvider; |
| final ListenableFuture<List<List<AccountWithDataSet>>> all = |
| Futures.nonCancellationPropagating( |
| Futures.successfulAsList( |
| Futures.transform(mAccountTypesFuture, mAccountsExtractor), |
| mLocalAccountsFuture)); |
| |
| return Futures.transform(all, new Function<List<List<AccountWithDataSet>>, |
| List<AccountInfo>>() { |
| @Nullable |
| @Override |
| public List<AccountInfo> apply(@Nullable List<List<AccountWithDataSet>> input) { |
| // input.get(0) contains accounts from AccountManager |
| // input.get(1) contains device local accounts |
| Preconditions.checkArgument(input.size() == 2, |
| "List should have exactly 2 elements"); |
| |
| final List<AccountInfo> result = new ArrayList<>(); |
| for (AccountWithDataSet account : input.get(0)) { |
| result.add( |
| typeProvider.getTypeForAccount(account).wrapAccount(mContext, account)); |
| } |
| |
| for (AccountWithDataSet account : input.get(1)) { |
| result.add( |
| typeProvider.getTypeForAccount(account).wrapAccount(mContext, account)); |
| } |
| AccountInfo.sortAccounts(null, result); |
| return result; |
| } |
| }); |
| } |
| |
| @Override |
| public ListenableFuture<List<AccountInfo>> filterAccountsAsync( |
| final Predicate<AccountInfo> filter) { |
| return Futures.transform(getAllAccountsAsyncInternal(), new Function<List<AccountInfo>, |
| List<AccountInfo>>() { |
| @Override |
| public List<AccountInfo> apply(List<AccountInfo> input) { |
| return new ArrayList<>(Collections2.filter(input, filter)); |
| } |
| }, mExecutor); |
| } |
| |
| @Override |
| public AccountInfo getAccountInfoForAccount(AccountWithDataSet account) { |
| if (account == null) { |
| return null; |
| } |
| AccountType type = mTypeProvider.getTypeForAccount(account); |
| if (type == null) { |
| type = mFallbackAccountType; |
| } |
| return type.wrapAccount(mContext, account); |
| } |
| |
| private List<AccountWithDataSet> getAccountsWithDataSets(Account[] accounts, |
| AccountTypeProvider typeProvider) { |
| List<AccountWithDataSet> result = new ArrayList<>(); |
| for (Account account : accounts) { |
| final List<AccountType> types = typeProvider.getAccountTypes(account.type); |
| for (AccountType type : types) { |
| result.add(new AccountWithDataSet( |
| account.name, account.type, type.dataSet)); |
| } |
| } |
| return result; |
| } |
| |
| /** |
| * Returns the default google account specified in preferences, the first google account |
| * if it is not specified in preferences or is no longer on the device, and null otherwise. |
| */ |
| @Override |
| public Account getDefaultGoogleAccount() { |
| final SharedPreferences sharedPreferences = |
| mContext.getSharedPreferences(mContext.getPackageName(), Context.MODE_PRIVATE); |
| final String defaultAccountKey = |
| mContext.getResources().getString(R.string.contact_editor_default_account_key); |
| return getDefaultGoogleAccount(mAccountManager, sharedPreferences, defaultAccountKey); |
| } |
| |
| @Override |
| public List<AccountInfo> getWritableGoogleAccounts() { |
| final Account[] googleAccounts = |
| mAccountManager.getAccountsByType(GoogleAccountType.ACCOUNT_TYPE); |
| final List<AccountInfo> result = new ArrayList<>(); |
| for (Account account : googleAccounts) { |
| final AccountWithDataSet accountWithDataSet = new AccountWithDataSet( |
| account.name, account.type, null); |
| final AccountType type = mTypeProvider.getTypeForAccount(accountWithDataSet); |
| if (type != null) { |
| // Accounts with a dataSet (e.g. Google plus accounts) are not writable. |
| result.add(type.wrapAccount(mContext, accountWithDataSet)); |
| } |
| } |
| return result; |
| } |
| |
| /** |
| * Returns true if there are real accounts (not "local" account) in the list of accounts. |
| * |
| * <p>This is overriden for performance since the default implementation blocks until all |
| * accounts are loaded |
| * </p> |
| */ |
| @Override |
| public boolean hasNonLocalAccount() { |
| final Account[] accounts = mAccountManager.getAccounts(); |
| if (accounts == null) { |
| return false; |
| } |
| for (Account account : accounts) { |
| if (mTypeProvider.supportsContactsSyncing(account.type)) { |
| return true; |
| } |
| } |
| return false; |
| } |
| |
| /** |
| * Find the best {@link DataKind} matching the requested |
| * {@link AccountType#accountType}, {@link AccountType#dataSet}, and {@link DataKind#mimeType}. |
| * If no direct match found, we try searching {@link FallbackAccountType}. |
| */ |
| @Override |
| public DataKind getKindOrFallback(AccountType type, String mimeType) { |
| DataKind kind = null; |
| |
| // Try finding account type and kind matching request |
| if (type != null) { |
| kind = type.getKindForMimetype(mimeType); |
| } |
| |
| if (kind == null) { |
| // Nothing found, so try fallback as last resort |
| kind = mFallbackAccountType.getKindForMimetype(mimeType); |
| } |
| |
| if (kind == null) { |
| if (Log.isLoggable(TAG, Log.DEBUG)) { |
| Log.d(TAG, "Unknown type=" + type + ", mime=" + mimeType); |
| } |
| } |
| |
| return kind; |
| } |
| |
| /** |
| * Returns whether the account still exists on the device |
| * |
| * <p>This is overridden for performance. The default implementation loads all accounts then |
| * searches through them for specified. This implementation will only load the types for the |
| * specified AccountType (it may still require blocking on IO in some cases but it shouldn't |
| * be as bad as blocking for all accounts). |
| * </p> |
| */ |
| @Override |
| public boolean exists(AccountWithDataSet account) { |
| final Account[] accounts = mAccountManager.getAccountsByType(account.type); |
| for (Account existingAccount : accounts) { |
| if (existingAccount.name.equals(account.name)) { |
| return mTypeProvider.getTypeForAccount(account) != null; |
| } |
| } |
| return false; |
| } |
| |
| /** |
| * Return {@link AccountType} for the given account type and data set. |
| */ |
| @Override |
| public AccountType getAccountType(AccountTypeWithDataSet accountTypeWithDataSet) { |
| final AccountType type = mTypeProvider.getType( |
| accountTypeWithDataSet.accountType, accountTypeWithDataSet.dataSet); |
| return type != null ? type : mFallbackAccountType; |
| } |
| } |